IP Library Granted Patent US 7,755,206
Granted Patent B2
US 7,755,206 · App. 11/947,184 · Granted Jul 13, 2010

Pad structure to provide improved stress relief

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,755,206
App. No.
11/947,184
Granted
Jul 13, 2010
Kind
B2
Abstract

A semiconductor interconnection comprises a semiconductor device, a substrate adjacent the semiconductor device, and a plurality of spring contacts on the semiconductor device or the substrate. A plurality of solder connections are on the opposite semiconductor device or substrate. Each spring contact comprises a contact surface and a conductive material on the contact surface. Upon assembly of the semiconductor device and the substrate, the conductive material on the plurality of spring contacts makes contact with each of the plurality of solder connections. The conductive material is in a liquid state at manufacturing or operating temperatures of the semiconductor device. Thus, the conductive material could be a solid at room temperature and transition to a liquid state at the semiconductor's manufacturing or operating temperatures.

Claims (6)

1. A semiconductor interconnection comprising:

a semiconductor device;

a substrate adjacent said semiconductor device;

a plurality of spring contacts on one of said semiconductor device and said substrate wherein each spring contact comprises a contact surface and a conductive material on said contact surface; and

a plurality of solder connections on the other of said semiconductor device and said substrate, wherein upon assembly of said semiconductor device and said substrate, said conductive material on said plurality of spring contacts makes contact with each of said plurality of solder connections, and

wherein each of said spring contacts comprises a beam and a compressible material below said beam.

Assignments (8)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS (REEL 062079, FRAME 0677) Recorded Mar 3, 2026
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: X CORP. (F/K/A TWITTER, INC.)
Reel/Frame 075015/0574 →
RELEASE OF SECURITY INTEREST Recorded Apr 30, 2025
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: X CORP. (F/K/A TWITTER, INC.)
Reel/Frame 071127/0240 →
RELEASE OF SECURITY INTEREST Recorded Mar 27, 2025
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: X CORP. (F/K/A TWITTER, INC.)
Reel/Frame 070670/0857 →
SECURITY INTEREST Recorded Oct 28, 2022
From: TWITTER, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 062079/0677 →
SECURITY INTEREST Recorded Oct 28, 2022
From: TWITTER, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 061804/0001 →
SECURITY INTEREST Recorded Oct 28, 2022
From: TWITTER, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 061804/0086 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2014
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: TWITTER, INC.
Reel/Frame 032075/0404 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 29, 2007
From: FAROOQ, MUKTA G.; FITZSIMMONS, JOHN A.; FLEISCHMAN, THOMAS J.
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 020176/0219 →